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中国生物防治学报 ›› 2017, Vol. 33 ›› Issue (1): 128-133.DOI: 10.16409/j.cnki.2095-039x.2017.01.018

• 研究论文 • 上一篇    下一篇

基于发酵床养猪垫料的地衣芽胞杆菌FJAT-4固态发酵培养条件的优化

陈燕萍, 肖荣凤, 刘波, 史怀, 唐建阳, 朱育菁   

  1. 福建省农业科学院农业生物资源研究所, 福州 350003
  • 收稿日期:2016-05-30 出版日期:2017-02-08 发布日期:2017-01-24
  • 通讯作者: 刘波,研究员,E-mail:fzliubo@163.com
  • 作者简介:陈燕萍,女,硕士,助理研究员,E-mail:chenyanping071@sina.com
  • 基金资助:
    国家农业成果转化(闽财指-2014-969号);福建省农业科技重大专项(2015NZ0003);福建省公益类科研专项(2015R1018-3)

Culture Optimization for Solid-fermentation of Bacillus licheniformis FJAT-4 with Pig-raising Litters from Microbial Fermentation Bed

CHEN Yanping, XIAO Rongfeng, LIU Bo, SHI Huai, TANG Jianyang, ZHU Yujing   

  1. Institute of Agricultural Bio-Resources Research, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China
  • Received:2016-05-30 Online:2017-02-08 Published:2017-01-24

摘要: 为提高枯萎病生防菌地衣芽胞杆菌FJAT-4的固态发酵水平,以农业副产物——微生物发酵床养猪垫料为主要培养基成分,以活菌体数量为指标,通过单因子试验对菌株FJAT-4的最适发酵培养基成分及发酵条件进行优化。结果表明,菌株FJAT-4最适发酵培养基配方为垫料:麸皮(质量比)=7:3、K2HPO4 0.05%、MgSO4 0.025%;最佳发酵培养条件为温度35℃,相对湿度45%,通气量75%,发酵周期40 h。在最佳发酵培养基和发酵条件下,菌株FJAT-4固态发酵物干重活菌体数可达2.63×109 cfu/g。

关键词: 地衣芽胞杆菌, 固态发酵, 培养基优化, 培养条件优化

Abstract: Bacillus licheniformis FJAT-4 is a biocontrol strain against Fusarium oxysporum. In order to improve the solid-fermentation level of the FJAT-4, the fermentation culture media and culture conditions were optimized by using single factor analysis. The medium was mainly the litters from microbial fermentation bed for pig-raising, and the bacterial yield was used as the indicator in all tests. The results showed that optimal fermentation medium formula for FJAT-4 was a mass ratio of 7:3 for litters and wheat bran with 0.05% K2HPO4 and 0.025% MgSO4. The optimal fermentation conditions were temperature 35℃, relative moisture 45%, ventilation 75% and fermentation time for 40 hours. The average bacterial yield of FJAT-4 could reach up to 2.63×109 cfu/g under the optimal condition.

Key words: Bacillus licheniformis, solid-fermentation, medium optimization, condition optimization

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